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It is shown that harmonic functions on some subsets, subharmonic and coinciding everywhere outside of these sets, actually coincide everywhere.

Complex Variables · Mathematics 2022-12-15 B. N. Khabibullin

In this paper, we study global properties of continuous plurisubharmonic functions on complete noncompact K\"ahler manifolds with nonnegative bisectional curvature and their applications to the structure of such manifolds. We prove that…

Differential Geometry · Mathematics 2007-05-23 Lei Ni , Luen-Fai Tam

We consider minimising $p$-harmonic maps from three-dimensional domains to the real projective plane, for $1<p<2$. These maps arise as least-energy configurations in variational models for nematic liquid crystals. We show that the singular…

Analysis of PDEs · Mathematics 2019-12-02 Giacomo Canevari , Giandomenico Orlandi

We show that a complete $m$-dimensional immersed submanifold $M$ of $\mathbb{R}^{n}$ with $a(M)<1$ is properly immersed and have finite topology, where $a(M)\in [0,\infty]$ is an scaling invariant number that gives the rate that the norm of…

Differential Geometry · Mathematics 2008-05-06 G. Pacelli Bessa , L. Jorge , J. Fabio Montenegro

The first result in this study is a non-existence theorem for $\alpha-$harmonic mappings. Additionally, a direct connection between the $\alpha-$ harmonic and harmonic maps is made possible via conformal deformation. Second, the instability…

Differential Geometry · Mathematics 2022-08-26 Seyed Mehdi Kazemi Torbaghan , Keyvan Salehi

In this paper we prove that on a complete smooth metric measure space with non-negative Bakry-\'Emery-Ricci curvature if the space of weighted L^2 harmonic one-forms is non-trivial then the weighted volume of the manifold is finite and…

Differential Geometry · Mathematics 2013-10-01 Matheus Vieira

In this paper we study the Perron method for solving the p-harmonic Dirichlet problem on the topologist's comb. For functions which are bounded and continuous at the accessible points, we obtain invariance of the Perron solutions under…

Analysis of PDEs · Mathematics 2015-01-19 Anders Björn

We extend our family rigidity and vanishing theorems in [{\bf LiuMaZ}] to the Spin^c case. In particular, we prove a K-theory version of the main results of [{\bf H}], [{\bf Liu1}, Theorem B] for a family of almost complex manifolds.

K-Theory and Homology · Mathematics 2007-05-23 Kefeng Liu , Xiaonan Ma , Weiping Zhang

In considering a class of quasilinear elliptic equations on a Riemannian manifold with nonnegative Ricci curvature, we give a new proof of Tolksdorf's result on the construction of separable $p$-harmonic functions in a cone.

Analysis of PDEs · Mathematics 2007-10-17 Alessio Porretta , Laurent Veron

Let $F: [0, \infty) \to [0, \infty)$ be a strictly increasing $C^2$ function with $F(0)=0$. We unify the concepts of $F$-harmonic maps, minimal hypersurfaces, maximal spacelike hypersurfaces, and Yang-Mills Fields, and introduce…

Differential Geometry · Mathematics 2015-05-18 Yuxin Dong , Shihshu Walter Wei

We prove some Liouville-type theorems for positive harmonic functions on compact Riemannian manifolds with nonnegative Ricci curvature and strictly convex boundary, thereby confirming some cases of Wang's conjecture (J. Geom. Anal. 31,…

Analysis of PDEs · Mathematics 2026-04-23 Xiaohan Cai

In this paper we study complete manifolds equipped with smooth measures whose spectrum of the weighted Laplacian has an optimal positive lower bound and the $m$-dimensional Bakry-\'Emery Ricci curvature is bounded from below by some…

Differential Geometry · Mathematics 2012-08-23 Jia-Yong Wu

Brighton [Bri13] proved the Liouville theorem for bounded harmonic functions on weighted manifolds satisfying non-negative curvature dimension condition, i.e. $CD(0,\infty).$ In this paper, we provide a new proof of this result by using the…

Metric Geometry · Mathematics 2018-06-15 Bobo Hua

We show that on any Riemannian manifold with H\"older continuous metric tensor, there exists a $p$-harmonic coordinate system near any point. When $p = n$ this leads to a useful gauge condition for regularity results in conformal geometry.…

Differential Geometry · Mathematics 2015-07-15 Vesa Julin , Tony Liimatainen , Mikko Salo

We study a second order ordinary differential equation corresponding to rotationally symmetric $p$-harmonic maps. We show unique continuation and Liouville's type theorems for positive solutions. We discuss the existence of bounded positive…

dg-ga · Mathematics 2008-02-03 Man Chun Leung

We show the smoothness of weakly Dirac-harmonic maps from a closed spin Riemann surface into stationary Lorentzian manifolds, and obtain a regularity theorem for a class of critical elliptic systems without anti-symmetry structures.

Analysis of PDEs · Mathematics 2020-03-31 Wanjun Ai , Miaomiao Zhu

In this paper we lay the foundations for the Morse theoretical study of strongly indefinite functionals on Banach manifolds by developing the local theory for a specific model class that captures several key analytical features also arising…

Analysis of PDEs · Mathematics 2026-03-03 L. Asselle , S. Cingolani , M. Starostka

We propose a new notion called \emph{infinity-harmonic maps}between Riemannain manifolds. These are natural generalizations of the well known notion of infinity harmonic functions and are also the limiting case of $p$% -harmonic maps as…

Differential Geometry · Mathematics 2011-01-18 Ye-Lin Ou , Tiffany Troutman , Frederick Wilhelm

Let $M^n(n\geq3)$ be an $n$-dimensional compact Riemannian manifold with harmonic curvature and positive scalar curvature. Assume that $M^n$ satisfies some integral pinching conditions. We give some rigidity theorems on compact manifolds…

Differential Geometry · Mathematics 2016-01-12 Hai-Ping Fu

We reprove and generalize the result that the intersection cohomology groups of a toric variety with coefficient in a nontrivial rank one local system vanish. We prove a similar vanishing result for a certain class of varieties on which a…

Algebraic Geometry · Mathematics 2024-03-13 Yiyu Wang